Páncreas Flashcards

1
Q

Qué secreta el páncreas

A

Insulina y glucagón

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2
Q

Dónde se sintetiza la glucosa?

A

Células B pancráticas

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3
Q

Qué es el GLUT-4?

A

transportador de glucosa

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4
Q

función de la insulina:

A

fomenta la utilización de los hidratos de carbono

con fines energéticos y reduce el uso de los lípidos.

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5
Q

Nivel de glucosa normal en sangre

A

80 a 100mg/dL

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6
Q

cuántos y cuáles tipos de secreción de insulina hay?

A

2

  • basal
  • estimulada
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7
Q

secreción basal:

A

se secreta continuamente

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8
Q

secreción estimulada:

A

depende de la alimentación.

2 fases

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9
Q

fase 1 de la secreción estimulada:

A

rápida y transitoria, 1 minuto posterior al incremento de glucosa

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10
Q

fase 2 de la secreción estimulada:

A

se usa si quedó almacenada y si no, síntesis de novo.

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11
Q

Qué es el glucagón?

A

lo contrario a la insulina, limita el efecto de la insulina

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12
Q

que hace el glucagón?

A

aumenta glucemia, promueve glucogenólisis y gluconeogénesis hepática

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13
Q

células alfa:

A

segregan glucagón (hiperglucemiante)

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14
Q

células beta:

A

segrega insulina (hipoglucemiante)

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15
Q

qué hace la somatostatina?

A

inhibe la secreción de glucagón e insulina.

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